Explain the contributions of Meyer and Moseley to the periodic table.

Q: Which periodic property is particularly important to nerve signal transmission? Why?

A: A human body, which has an intracellular and an extracellular portion of the cells, comprises of…

Q: Describe the basic features of the periodic table

A: A table in which the elements are arranged in the increasing order of their atomic number is termed…

Q: Explain why atomic radius decreases as we move to the right across a period for main-group elements…

A: In the main-group elements, the atomic radius decreases on moving from left to right across a period…

Q: Explain Trends in First Ionization Energy?

A: Ionisation energy of any element is defined as the energy required to remove valence electron from 1…

Q: What are the main features of Mendeleev's periodic table?

A: Mendeleev states that the “the properties of the elements are the periodic function to their atomic…

Q: Name the element with the atomic orbital diagram shown below: 3d 11 11 4s 3p 3s 2p 2s 1s 14 11 = 11…

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Q: Compare and contrast all the periodic trends between magnesium and chlorine.

A: Compare Magnesium and Chlorine on the basis of their properties, attributes and periodic table…

Q: Write the electron configuration for palladium.

A: Electronic configuration of an element tells us about the filling up of electrons in the different…

Q: What are the observed periodic trends in metallic character?

A: The observed periodic trends in metallic character: The periodic trends in metallic character can be…

Q: Why does flourine have a smaller atomic radius than magnesium?

A: Magnesium belongs to 2nd group and 3rd period .The element fluorine  belongs to 17 th group and 2nd…

Q: What do you mean by diagonal relationship in the periodic table?

A: This is usually observed between first elements of group 1 (say period 2) with that which is…

Q: Explain the periodic trends for electron affinity

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Q: What electron transitions account for the Balmer series?

A: The electron present in the hydrogen atom can absorb energy and get excited from a lower energy…

Q: In what region of the periodic table will you find elements with relatively high IEs? With…

A: IE here refers to the ionization energy of an atom. It is the energy required by an isolated atom to…

Q: Describe and apply the periodic trends for atomic radius. Identify which of the following atoms…

A: The elements given are Sr, Zn, Cl, Be, and P.

Q: Which elements on the periodic table tend to have the lowest first ionisation energy? What is the…

A: The amount of energy required to eject the most loosely bound electron of an isolated atom in the…

Q: 2)Why did the observed chemistry of thallium mislead Mendelev to place the group 13 element (Tl) in…

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Q: Draw the partial (valence-level) orbital diagram, and write the symbol, group number, and period…

A: Modern periodic table has 18 groups and 7 periods. The modern periodic table is classified on the…

Q: Write the condensed electron configuration of palladium (Pd) if it is known to be diamagnetic.

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Q: Use the rare gas notation to write the electron configuration of Zr4+

A: Noble gases or the group 18 elements are known as rare gases. They are used in writing the electron…

Q: Scientist have speculated that element 126 might have a moderate stability, allowing it to be…

A: Adding rows (energy levels) to the periodic table until the element that will have an atomic number…

Q: Summarize the acid-base behavior of the main-group metal and nonmetal oxides in water. How does…

A: When a metal forms a bond with an oxygen atom then the compound is known as metal oxide. The…

Q: 1s²2s²2p63s²3p64s23d104p5 is the neutral electron configuration for the element in group [ Select]…

A: The correct answer is given below

Q: How does the aufbau principle, in connection with the peri-odic law, lead to the format of the…

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Q: How does valency vary in a group and period in the periodic table?

A: As you go left to right across a row called periods, the number of valence electrons increase by 1.…

Q: Explain the contributions of Döbereiner and Newlands to the organization of elements according to…

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Q: What trend in first ionization energy occurs across a period (as you go left to right) on the…

A: Ionization energy :- The minimum amount of energy is required to most  loosely bounded  electron…

Q: 19. (a) Draw the orbital diagram for one neutral atom of nitrogen. Use this diagram to explain the…

A: The pictorial descriptions of the electrons in an atom are known as orbital diagrams. There are…

Q: Describe the organization of elements in the periodic table.

A: In the periodic table, the elements are arranged in the order of their increasing atomic number.…

Q: The atomic number of an element is 73. Is this element diamagnetic or paramagnetic?

A: Whenever two electrons are paired together in an orbital, or their total spin is 0, they are…

Q: Describe and apply the periodic trends for atomic radius. Identify which of the following atoms…

A: Answer:  Cs would have the largest atomic radius.

Q: explain why there are 14 members of each f block series

A: no. of orbitals in f block series: 7 in f orbitals, we can can have maximum of 14 electrons

Q: Which of these corresponds to the Paschen, series? The Balmer series? Use the information below

A: When the electrons absorb energy, it gets excited to higher energy levels. While returning to the…

Q: Explain the meaning of diamagnetic and paramagnetic. Give an example of an element that is…

A: Explain diamagnetism and paramagnetism

Q: Using the idea of dobereiner’s triads, what conclusion could have been made about magnesium, had…

A: Dobereiner’s triads : To segregate and group similar elements together  Sir Johanan Wolfgang…

Q: State the Aufbau principle, and explain the role it plays in classifying the elements in the…

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Q: Due to periodicity, which element would you expect to behave most like molybdenum? (a)   Tungsten…

A: The periodicity is repetition of elements with similar properties after certain regular intervals…

Q: Suppose you were trying to find a substitute for K+ for some application. Where would you begin your…

A: Ca2+ ions are most likely to be like K+ in nerve signal transmission. The information is transmitted…

Q: What trend in atomic radius occurs as you go down a group on the periodic table? Explain why this…

A: Atomic radius increases as we go down to a group.

Q: What is the first p element in the 4th period to which Hund's rule must be applied when writing the…

A: Given that, period 4th element = first block = p block

Q: Explain the periodic trends for ionization energy.

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Q: Describe the procedure of writing the electron configuration for an elementbased on its position in…

A: The periodic table is a tabular arrangement of all the known elements based on the atomic number and…

Q: Explain why atomic radius decreases as you move to the right across a period for main-group elements…

A: Moving towards the right side of the periodic table leads to atomic number increases means there is…

Q: Which has the larger second ionization energy, lithium or beryllium? Why?

A: Second ionisation energy is defined as the energy required for removing elements' second electron…

Q: how many completely filled s-orbitals are in magnesium

A: Electronic configuration of an atom is defined as the arrangement of electrons of the atoms in its…